CN213290101U - Gearbox bearing extracting tool - Google Patents

Abstract

The utility model relates to a gearbox bearing extracting tool, including the jack catch, the jack catch includes supporting part and a plurality of claw arm that can the combined action promptly bearing workpiece, supporting part one end periphery department is located to the claw arm, wear to be equipped with on the supporting part transversely set up and with supporting part threaded connection's lead screw. The utility model has the characteristics of can be simple and convenient take out bearing workpiece alone and can avoid damaging other parts etc.

Description

Gearbox bearing extracting tool

Technical Field

The utility model relates to a gearbox bearing extracting tool belongs to the technical field in motor transmission maintenance field.

Background

The gearbox assembly is a transmission part integrating a gear, a shaft, a synchronizer, a bearing and a sealing ring, and has the advantages of compact structure, multiple assembly processes, in-place press mounting of the bearings at two ends by an assembly line, difficult independent taking out of the bearings when the bearings need to be replaced in the gearbox, and damage to the gear, the shaft, the synchronizer and other bearings in the disassembly and assembly process.

Disclosure of Invention

An object of the utility model is to provide a gearbox bearing extracting tool, the bearing that has solved prior art existence takes out the great and vulnerable other part scheduling problems of degree of difficulty alone.

The above technical purpose of the present invention is mainly solved by the following technical solutions: a gearbox bearing dismounting tool comprises a claw, wherein the claw comprises a supporting part and a plurality of claw arms which can jointly grasp a bearing workpiece, the claw arms are arranged at the outer edge of one end of the supporting part, and a lead screw which is transversely arranged and is in threaded connection with the supporting part is arranged on the supporting part in a penetrating manner; through the setting of above-mentioned jack catch and lead screw for the lead screw can with the jack catch cooperation, drive the jack catch through the screw and move outwards, the jack catch can promptly the bearing work piece and move outwards, thereby can be convenient take out the bearing work piece alone, and can not harm other parts, the effectual degree of difficulty of taking out that has reduced the bearing work piece, and simple structure, easily operation.

Preferably, the screw rod is sleeved with an expansion core for expanding each claw arm, the expansion core is of a frustum structure, and the claw arms are mutually enclosed to form an inner conical surface which is matched with the expansion core and can expand each claw arm; through the setting of the expansion core, the claw arms can be expanded through the expansion core before grasping the bearing workpiece, so that the claw arms can be moved to the periphery of the bearing workpiece, the clamping is convenient, the expansion of the claw arms can be cancelled through the rotation of the screw rod, and the bearing workpiece can be directly grasped through the resetting of the claw arms.

Preferably, the outer side of the claw arm of the claw is provided with a clamping sleeve, the inner wall of the clamping sleeve is provided with a plurality of clamping keys at equal intervals, and the outer wall of the claw arm is provided with a key groove for clamping the clamping keys; the clamping sleeve is arranged, each claw arm can be clamped tightly, the claw arms are guaranteed to firmly grab a bearing workpiece, the claw arms are loosened when the bearing workpiece is prevented from being pulled out, dangerousness or even damage to the bearing workpiece is caused, the clamping keys and the key grooves can be matched with each other just to fix the clamping sleeve at a specified position, the clamping sleeve is prevented from moving easily, the clamping sleeve can be positioned, and the clamping quality of the clamping sleeve to the claw arms is guaranteed.

Preferably, the number of the clamping keys is consistent with that of the claw arms, the key grooves are arranged at one end close to the bearing workpiece, and the distance between every two adjacent claw arms is consistent with the width of the clamping keys; the quantity of above-mentioned latch and claw arm keeps unanimous can strengthen the fixed intensity of keyway to the cutting ferrule, and the interval between two claw arms and the width of latch are unanimous can make things convenient for the removal of cutting ferrule to grasp and cancel fixedly to the claw arm at any time.

Preferably, the end part of the inner conical surface corresponding to each claw arm is provided with a clamping groove for clamping a bearing workpiece; the clamping groove can tightly grasp the bearing workpiece through the retaining ring groove of the outer ring of the bearing workpiece, so that the grasping strength of the claw arm on the bearing workpiece is ensured, and the bearing workpiece is prevented from being loosened when being grasped.

Preferably, a clamping groove is formed in one side, corresponding to the expansion core, of the screw rod, a clamping spring capable of preventing the expansion core from being separated from the screw rod is arranged on the clamping groove, and the other end of the expansion core is abutted to threads on the screw rod; the setting of above-mentioned jump ring for the core that rises can be fixed on the lead screw, thereby the core that rises can realize the back-and-forth movement through the rotation of lead screw, realizes opening and relaxing the expansion of claw arm then, and the setting of jump ring, but easy to assemble dismantles.

Preferably, a fixing rod penetrates through one end of the screw rod, and the fixing rod penetrates through a round hole in the end part of the screw rod; the fixing rod can prolong the force arm, so that the working personnel can control the screw rod to rotate more easily and labor-saving, and the working efficiency is improved.

Therefore, the utility model has the characteristics of can be simple and convenient take out bearing workpiece alone and can avoid damaging other parts etc.

Drawings

Fig. 1 is an exploded view of the present invention;

fig. 2 is a structural sectional view of the present invention.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

As shown in fig. 1-2, a gearbox bearing dismounting tool comprises a claw 1, wherein the claw 1 comprises a supporting part 11 and a plurality of claw arms 12 which can jointly grasp a bearing workpiece, the claw arms 12 are arranged at the outer edge of one end of the supporting part 11, and a lead screw 2 which is transversely arranged and is in threaded connection with the supporting part 11 is arranged on the supporting part 11 in a penetrating manner, so that the lead screw can be matched with the claw through the arrangement of the claw and the lead screw, the claw is driven to move outwards through threads, and the claw can grasp the bearing workpiece to move outwards, so that the bearing workpiece can be conveniently and independently taken out, other parts cannot be damaged, the difficulty in taking out the bearing workpiece is effectively reduced, and the gearbox bearing dismounting tool is simple in structure and easy to; the fixing rod 24 is arranged at one end of the screw rod 2 in a penetrating mode, the fixing rod 24 is arranged in the round hole 241 at the end portion of the screw rod 2 in a penetrating mode, the arm of force can be prolonged by the fixing rod, the screw rod is controlled by a worker to rotate, the labor is saved more easily, the working efficiency is improved, and the fixing rod penetrates through the round hole and is locked through the nut.

The fixed rod is rotated to drive the screw rod to rotate clockwise or anticlockwise, and the screw rod and the clamping jaw move relatively through thread transmission; simultaneously, the expansion core connected to the screw rod and the clamping jaw are driven to move relatively.

As shown in fig. 2, the screw rod 2 is sleeved with an expanding core 21 for expanding each claw arm 12, the expanding core 21 is of a frustum structure, the claw arms 12 are mutually enclosed to form an inner conical surface 121 which is matched with the expanding core 21 and can expand each claw arm 12, through the arrangement of the expanding core, before the claw arms grasp a bearing workpiece, each claw arm can be expanded through the movement of the expanding core on the inner conical surface, so that the claw arm can be moved to the periphery of the bearing workpiece, the clamping is convenient, and meanwhile, the expanding of the claw arm can be cancelled through the rotation of the screw rod, so that the bearing workpiece can be grasped directly through the resetting of the claw arm; the end part of the inner conical surface 121 corresponding to each claw arm 12 is provided with a clamping groove 122 for clamping a bearing workpiece, and the clamping groove can clamp the bearing workpiece through a retaining ring groove on the outer ring of the bearing workpiece, so that the clamping strength of the claw arms on the bearing workpiece is ensured, and the bearing workpiece is prevented from being loosened when being clamped; the one end that is corresponding to the core 21 that rises on the lead screw 2 is equipped with draw-in groove 23, be equipped with the jump ring 231 that can prevent the core 21 that rises and break away from on the lead screw 2 on the draw-in groove 23, the screw butt on the other end of core 21 and the lead screw 21 rises, the setting of above-mentioned jump ring, make the core that rises to fix on the lead screw, thereby the core that rises can realize the back-and-forth movement through the rotation of lead screw, realize then opening and relaxing the rising of claw arm, and the setting of jump ring, can dismantle by easy to assemble, through draw-in groove and jump ring on the lead screw, the.

The claw arms of the claws are expanded by the action force of the outer conical surface of the expansion core on the inner conical surface of the claws, and the claw arms of the claws 1 are closed by separating the inner conical surface of the claws from the outer conical surface of the expansion core, namely the claw arms are restored.

As shown in fig. 2, a cutting sleeve 22 is arranged on the outer side of a claw arm 12 of a claw 1, a plurality of clamping keys 221 are arranged on the inner wall of the cutting sleeve 22 at equal intervals, key grooves 122 for clamping the clamping keys 221 are formed in the outer wall of the claw arm 12, the cutting sleeve can clamp each claw arm, so that the claw arm can stably grab a bearing workpiece, the claw arm is prevented from being loosened when the bearing workpiece is pulled out, the bearing workpiece is prevented from being dangerous and even damaged, the clamping keys and the key grooves can be matched with each other to fix the cutting sleeve at a designated position, the cutting sleeve is prevented from being easily moved, the positioning of the cutting sleeve is realized, and the clamping quality of the cutting sleeve on the claw arm is ensured; the number of the clamping keys 221 is consistent with that of the claw arms 12, the key groove 122 is arranged at one end close to a bearing workpiece, the distance between every two adjacent claw arms 12 is consistent with the width of the clamping key 221, the fixing strength of the key groove for the ferrule can be enhanced by keeping the number of the clamping keys and the number of the claw arms consistent, the movement of the ferrule can be facilitated by keeping the distance between the two claw arms consistent with the width of the clamping keys, and the claw arms can be conveniently clamped and fixedly cancelled at any time; the clamping sleeve can axially slide on the clamping jaw, when a clamping key on the clamping sleeve is aligned with the key groove of the clamping jaw, the clamping sleeve can rotate, when the clamping key rotates into the key groove, clamping is achieved, and when the clamping key leaves the key groove, clamping is eliminated.

Firstly, rotating a fixed rod in one direction, moving a screw rod outwards, generating an external thrust by an expansion core connected to the screw rod and an inner conical surface on a jaw through an outer conical surface, expanding a plurality of uniformly distributed claw arms on the jaw outwards, and sleeving the claw arms on a bearing workpiece; then the fixed rod rotates reversely, the screw rod moves inwards, and the outer conical surface of the expansion core connected with the screw rod is separated from the inner conical surface on the clamping jaw; the clamping sleeve is controlled to move towards the direction of a bearing workpiece to be dismounted, the clamping sleeve slides on the claw arm, when a plurality of clamping keys which are uniformly distributed on the clamping sleeve are aligned with key grooves on the claw, the clamping sleeve rotates for a specified angle until the outer circular surface of the key groove on the claw is tightly attached to the inner circular surface of the clamping key on the clamping sleeve, and a clamping groove on the claw is clamped into a retainer ring groove of the outer ring of the bearing workpiece; and finally, continuously rotating the fixed rod, moving the screw rod inwards, enabling the end face on the screw rod to be propped against the shaft end face of the bearing workpiece, continuously rotating the fixed rod, and enabling the bearing workpiece to move outwards under the action of the tensile force of the clamping jaws until the bearing workpiece is pulled out.

Claims (7)

1. The utility model provides a gearbox bearing extracting tool, includes jack catch (1), jack catch (1) includes that supporting part (11) and a plurality of combined action grasp claw arm (12) of bearing work piece, supporting part (11) one end periphery department is located in claw arm (12), wear to be equipped with on supporting part (11) transversely set up and with supporting part (11) threaded connection's lead screw (2).

2. The transmission bearing removal tool of claim 1, wherein: the cover is equipped with on lead screw (2) and is used for expanding each the core (21) that expands of claw arm (12), it is frustum structure to expand core (21), each enclose each other between claw arm (12) and close and be formed with the interior conical surface (121) that can expand each claw arm (12) of expanding core (21) cooperation.

3. The transmission bearing removal tool of claim 1, wherein: the claw arm (12) outside of jack catch (1) is equipped with cutting ferrule (22), the equidistance interval is equipped with a plurality of calories of keys (221) on the inner wall of cutting ferrule (22), be equipped with on the outer wall of claw arm (12) and be used for supplying keyway (221) keyway (122) that go into.

4. The transmission bearing removal tool of claim 3, wherein: the number of the clamping keys (221) is consistent with that of the claw arms (12), the positions of the key grooves (122) are arranged at one end close to a bearing workpiece, and the distance between every two adjacent claw arms (12) is consistent with the width of the clamping keys (221).

5. The gearbox bearing removal tool of claim 2, wherein: the end part of the inner conical surface (121) corresponding to each claw arm (12) is provided with a clamping groove (123) used for clamping a bearing workpiece.

6. The transmission bearing removal tool of claim 1, wherein: the screw rod (2) is provided with a clamping groove (23) corresponding to one end of the expansion core (21), the clamping groove (23) is provided with a clamp spring (231) capable of preventing the expansion core (21) from being separated from the screw rod (2), and the other end of the expansion core (21) is abutted to the thread on the screw rod (2).

7. The transmission bearing removal tool of claim 1, wherein: a fixing rod (24) penetrates through one end of the screw rod (2), and the fixing rod (24) penetrates through a round hole (241) in the end portion of the screw rod (2).

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